Arnica comes from several species of the daisy-like genus Arnica, native to high mountains of western North America. Tincture of arnica is an external remedy for bruises, sprains, and sore muscles and joints. It is made by crushing whole plants and soaking them in alcohol. Both the plant and tincture have a characteristic, pleasant smell. You can buy tincture of arnica in herb stores and some drugstores.
Created with Admarket'sflickrSLiDR.